Sinead O'Connor's new tattoo: Massive chest Jesus!

When we last checked in with Irish chanteuse
Sinead O'Connor, she'd changed her look somewhat since her heydey as a Pope-photo-ripping banshee -- so much so that some even questioned if
the woman pictured was actually O'Connor.

But when cameras caught up with her Thursday (Oct. 27) evening at The 2011 amfAR Inspiration Gala at Los Angeles's Chateau Marmont, O'Connor was again sporting her signature bald-headed look, a trimmer figure and what appeared to be a freshly-inked massive tattoo of Jesus on her chest.

O'Connor performed at the event, along with Blondie frontwoman
Debbie Harry, who herself (see below) wore a showstopping outfit. The gala was attended by
Sandra Bullock (who
landed an Andy Warhol painting for son Louis),
Colin Farrell and
Sean Penn, among others.

O'Connor also made headlines in August when she
wrote on her website that she was "in desperate need of a very sweet sex-starved man."

Earlier this week, O'Connor criticized the British version of "X Factor."

"My daughter wants to be a singer," she said. "But I wouldn't want to put her into a situation like The X Factor where she would be vulnerable to being looked at by someone which is a huge thing for a 15- or 16-year-old to deal with."